I used these for the first time during a rowing competition, had practiced and my forearm was getting really tight by the end of a practice session, did not want that happening on race day, threw 1 on the side that was achy during practice and felt great after 3 racesAlso gave the other 1 to my girlfriend to use as she broke her arm a little bit ago and when she works out her elbow has a tendency to swell and it did a great job on keeping the swelling down